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Finding the Fourth Proportional to 65,190.87, 90,037.44 and 43,933.23

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Solution

The fourth proportional to 65,190.87, 90,037.44 and 43,933.23 is: 60,677.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,190.87 : 90,037.44 = 43,933.23 : x
  2. Step 2: Convert to fraction form
    65,190.87/90,037.44 = 43,933.23/x
  3. Step 3: Cross multiply
    65,190.87x = 90,037.44 × 43,933.23
  4. Step 4: Simplify right side
    65,190.87x = 3,955,635,560.13
  5. Step 5: Solve for x
    x = 3,955,635,560.13/65,190.87
  6. Step 6: Final answer
    x = 60,677.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.